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Symphurus williamsi Jordan and Culver, 1895
WILLIAMS TONGUEFISH
Life   Vertebrata   Fish   Cynoglossidae   Symphurus

Symphurus williamsi
www.fao.org Copyright Michel Lamboeuf · 0
Symphurus williamsi

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Overview
Main identification features
  • pale brown; thin faint complete bars
  • dorsal, anal and tail fins : ~uniform
  • inside opercle dark
  • blind side dorsal and anal finsrays: 1-3 scales on base
Yellow tonguefish, William's tonguefish

Body elongate, pointed at tail end, highly compressed; eyes small, close together, on left side, with small covers over pupils; snout rounded; mouth small, arched (strongly on blind side), at front or a little under snout; preopercle covered with skin; dorsal origin ~above upper eye, 89-95 dorsal rays; 73-79 anal rays; 12 tail rays; no pectoral; only left pelvic present, separate from anal; dorsal and anal fused to tail; scales rough, on both sides; no lateral line; 86-96 scales along body; rays of dorsal and anal on blind side with 1-3 rough scales.

Top side yellow to pale or dark brown; sometimes narrow, irregular, diffuse crossbars; dorsal, anal and tail fin uniform; inside operculum dark; lining of gut cavity not dark.

Size: 12 cm.

Habitat: sandy bottoms, including tidepools, estuaries and bays.

Depth: 1-55 m.

Southern Baja to the Gulf of California to Peru.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 55 m.
Depth Range Min: 1 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves.
Eastern Pacific Range: Northern limit=31; Southern limit=-14; Western limit=-115; Eastern limit=-75; Latitudinal range=45; Longitudinal range=40.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 12 cm.
Regional Endemism: Continent only; Continent; TEP endemic; Continental TEP endemic; 3 provinces (Cortez + Mexican + Panamic) endemic; All species.
Residency: Resident.
Salinity: Brackish; Marine.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142.
  • Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • González Navarro , E. and Saldierna Martínez, R., 1997., Zooplancton de la Bahía de La Paz, B.C.S. (1990-1991). En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:43-58.
  • Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • Jordan , D.S. and Evermann, B.W., 1898., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part III., Bull. U.S. Nat. Mus., 47:2183-3136.
  • Jordan, D.S., 1895., The fishes of Sinaloa., Proceedings of the California Academy of Sciences (Series 2), 5:377-514.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.

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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Symphurus williamsi Jordan & Culver , 1895

William's tonguefish Add your observation in Fish Watcher
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Pictures | Google image Image of Symphurus williamsi (William\ Symphurus williamsi
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Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Pleuronectiformes (Flatfishes) > Cynoglossidae (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335 ) .  More on authors: Jordan & Culver .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 0 - 52 m (Ref. 9294 ), usually 0 - 30 m (Ref. 9294 ).   Tropical; 32°N -

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: Gulf of California to Peru.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 11.6 cm SL male/unsexed; (Ref. 9294 ); common length : 7.5 cm SL male/unsexed; (Ref. 9294 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 89-95; Anal spines : 0; Anal soft rays : 73 - 79; Vertebrae : 47 - 51

Biology     Glossary (e.g. epibenthic)

Found in tide pools, estuaries and inlets with sandy bottoms (Ref. 9294 ). Probably taken with seines and as bycatch of trawl fisheries (Ref. 9294 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Munroe, T.A., F. Krupp and M. Schneider , 1995. Cynoglossidae. Lenguas, lenguetas. p. 1039-1059. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9294 )

IUCN Red List Status (Ref. 120744 )

  Least Concern (LC)  ; Date assessed: 29 April 2008

CITES (Ref. 118484 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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